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Add MySQL to PostgreSQL migration guide (#1024)
This commit is contained in:
Bethuel Mmbaga
+6
-1
@@ -910,7 +910,12 @@ const nextConfig = {
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},
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{
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source: '/selfhosted/activity-mysql-store',
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destination: '/selfhosted/maintenance/activity-mysql-store',
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destination: '/selfhosted/maintenance/activity-postgres-store',
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permanent: true,
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},
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{
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source: '/selfhosted/maintenance/activity-mysql-store',
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destination: '/selfhosted/maintenance/activity-postgres-store',
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permanent: true,
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},
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{
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@@ -900,6 +900,10 @@ export const docsNavigation = [
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title: 'External IdP to Embedded IdP',
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href: '/selfhosted/migration/external-to-embedded-idp',
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},
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{
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title: 'MySQL to PostgreSQL',
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href: '/selfhosted/migration/mysql-to-postgresql',
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},
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],
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},
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],
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@@ -54,9 +54,9 @@ The default quickstart deployment uses the relay service's embedded STUN server.
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| Variable | Default | Description |
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|----------|---------|-------------|
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| `NETBIRD_STORE_CONFIG_ENGINE` | `sqlite` | Store engine: `sqlite`, `postgres`, or `mysql` |
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| `NETBIRD_STORE_CONFIG_ENGINE` | `sqlite` | Store engine: `sqlite`, `postgres`, or `mysql` (deprecated) |
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| `NETBIRD_STORE_ENGINE_POSTGRES_DSN` | - | PostgreSQL connection string |
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| `NETBIRD_STORE_ENGINE_MYSQL_DSN` | - | MySQL connection string |
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| `NETBIRD_STORE_ENGINE_MYSQL_DSN` | - | MySQL connection string. Deprecated, see [Migrate from MySQL to PostgreSQL](/selfhosted/migration/mysql-to-postgresql) |
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| `NETBIRD_DATASTORE_ENC_KEY` | Auto-generated | Encryption key for sensitive data |
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<Note>
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@@ -1,15 +0,0 @@
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# Activity Events MySQL store
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## Using MySQL for fresh installations
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To enable MySQL add to your management service the following environmental variable:
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```bash
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NB_ACTIVITY_EVENT_STORE_ENGINE=mysql
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NB_ACTIVITY_EVENT_MYSQL_DSN="mysql://<username>:<password>@<host>:<port>/<db_name>"
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```
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You can switch back to sqlite storage by setting the `NB_ACTIVITY_EVENT_STORE_ENGINE` variable to `sqlite`.
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<Note>
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Switching between storage options requires migration steps to prevent data loss.
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</Note>
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@@ -333,10 +333,10 @@ Configures the database backend for storing all NetBird management data includin
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<Properties>
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<Property name="server.store.engine" type="string">
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Database engine. Options: `sqlite`, `postgres`, `mysql`. Default: `sqlite`.
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Database engine. Options: `sqlite`, `postgres`, `mysql`. Default: `sqlite`. `mysql` is deprecated, see [Migrate from MySQL to PostgreSQL](/selfhosted/migration/mysql-to-postgresql).
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</Property>
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<Property name="server.store.dsn" type="string">
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Connection string for postgres or mysql engines. For postgres: `host=localhost user=netbird password=secret dbname=netbird port=5432`. Alternatively, use the `NETBIRD_STORE_ENGINE_POSTGRES_DSN` or `NETBIRD_STORE_ENGINE_MYSQL_DSN` environment variables.
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Connection string for the postgres engine, or the deprecated mysql engine. For postgres: `host=localhost user=netbird password=secret dbname=netbird port=5432`. Alternatively, use the `NETBIRD_STORE_ENGINE_POSTGRES_DSN` environment variable (`NETBIRD_STORE_ENGINE_MYSQL_DSN` for mysql).
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</Property>
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<Property name="server.store.encryptionKey" type="string">
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base64 string of a 32-byte (256-bit) encryption key for sensitive data at rest. Used to encrypt setup keys, API tokens, and other secrets stored in the database. Auto-generated by the setup script.
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@@ -358,9 +358,9 @@ Configures the database backend for storing all NetBird management data includin
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|--------|---------|-------|
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| SQLite (default) | `/var/lib/netbird/` volume | File-based database stored in the `netbird_data` Docker volume. Zero configuration required, but does not support concurrent writes or running multiple management instances. Best for testing or small deployments. |
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| PostgreSQL | External database server | Recommended for production deployments. Supports concurrent access, enabling multiple management instances for high availability. |
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| MySQL | External database server | Alternative to PostgreSQL for organizations that have standardized on MySQL/MariaDB. Provides similar benefits including concurrent access. |
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| MySQL | External database server | Deprecated and will be removed in an upcoming release. See [Migrate from MySQL to PostgreSQL](/selfhosted/migration/mysql-to-postgresql). |
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For PostgreSQL or MySQL, set the connection string via the `server.store.dsn` field in `config.yaml` or environment variables on the `netbird-server` container. See [Using an External Database](#using-an-external-database) below.
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For PostgreSQL, or the deprecated MySQL engine, set the connection string via the `server.store.dsn` field in `config.yaml` or environment variables on the `netbird-server` container. See [Using an External Database](#using-an-external-database) below.
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See [Management Postgres Store](/selfhosted/maintenance/postgres-store) for detailed PostgreSQL setup.
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@@ -499,8 +499,6 @@ Alternatively, you can use an environment variable instead of putting the DSN in
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netbird-server:
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environment:
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- NETBIRD_STORE_ENGINE_POSTGRES_DSN=host=db-server user=netbird password=secret dbname=netbird port=5432
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# Or for MySQL:
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# - NETBIRD_STORE_ENGINE_MYSQL_DSN=user:password@tcp(host:3306)/netbird
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```
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See [Management Postgres Store](/selfhosted/maintenance/postgres-store) for detailed setup.
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@@ -0,0 +1,164 @@
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import {Note} from "@/components/mdx"
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export const description = 'Move a self-hosted NetBird deployment from MySQL to PostgreSQL before MySQL support is removed.'
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# Migrate from MySQL to PostgreSQL
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MySQL support for the Management store is deprecated and will be removed in an upcoming release. This guide moves an existing MySQL deployment to PostgreSQL with the `netbird-mysql-migrate` tool.
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The tool copies the following into PostgreSQL:
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- the Management store, from MySQL
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- the activity events (`events.db`) and embedded IdP (`idp.db`) stores, from their SQLite files
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The tool only reads your MySQL database and doesn't change it.
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## Before You Begin
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- Upgrade the management server to `v0.81.0` or later and start it once on MySQL, so the database schema is current. That's the `netbird-server` service, or `management` on the older multi-container setup, not the NetBird client. Use the tool from the same release.
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- Prepare an empty PostgreSQL database. To run one in Docker, see [Set Up PostgreSQL](/selfhosted/maintenance/scaling/migrate-sqlite-to-postgresql#set-up-postgre-sql). The examples in this guide connect with `sslmode=require`; use `verify-full` to also verify the server certificate. Use `sslmode=disable` only when PostgreSQL runs on the same host or Docker network as the management server.
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- Run the tool on a Linux machine that can reach both MySQL and PostgreSQL. The tool is Linux-only, built for `amd64`, `arm64`, and `arm`.
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## Step 1: Get the Migration Tool
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```bash
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VERSION=0.81.0
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curl -L -o netbird-mysql-migrate.tar.gz \
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https://github.com/netbirdio/netbird/releases/download/v${VERSION}/netbird-mysql-migrate_${VERSION}_linux_amd64.tar.gz
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tar xzf netbird-mysql-migrate.tar.gz
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chmod +x netbird-mysql-migrate
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```
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On `arm64` or `arm`, replace `linux_amd64` with `linux_arm64` or `linux_arm`.
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## Step 2: Stop the Management Server and Back Up
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Stop the management server and copy its data directory, which holds `events.db` and `idp.db`:
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```bash
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docker compose stop netbird-server
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mkdir backup
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docker compose cp -a netbird-server:/var/lib/netbird/. backup/
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chmod 700 backup
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```
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On the older multi-container setup, use the `management` service instead of `netbird-server`.
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Back up MySQL as well:
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```bash
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mysqldump --no-tablespaces -h <MYSQL_HOST> -u <MYSQL_USER> -p <MYSQL_DB> > backup/netbird-mysql.sql
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```
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The backup holds password hashes from `idp.db` and a full database dump, so `chmod 700` keeps it readable only by you. `--no-tablespaces` avoids a `PROCESS` privilege error when you dump as the NetBird database user.
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## Step 3: Run the Migration
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```bash
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./netbird-mysql-migrate \
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--mysql-dsn '<MYSQL_USER>:<MYSQL_PASSWORD>@tcp(<MYSQL_HOST>:3306)/<MYSQL_DB>' \
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--postgres-dsn 'host=<PG_HOST> port=5432 user=<PG_USER> password=<PG_PASSWORD> dbname=<PG_DB> sslmode=require' \
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--events-db backup/events.db \
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--auth-db backup/idp.db
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```
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When it finishes, you see:
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```
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management: 1520 rows from 39 tables
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activity: 8230 rows from 2 tables
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auth: 41 rows from 12 tables
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Done. Point the store, activity and auth store settings at Postgres before starting the server.
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```
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<Note>
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- All stores go into the database given by `--postgres-dsn`. To keep the activity or auth store in a separate database, add `--events-postgres-dsn` or `--auth-postgres-dsn`.
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- A missing `events.db` or `idp.db` is skipped. For example, deployments on an external IdP have no `idp.db`.
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- MySQL timestamps are read as UTC. If your management server runs in another time zone, for example with `TZ` set on the container, add `--mysql-timezone`, such as `--mysql-timezone Europe/Berlin`.
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- The tool stops if the PostgreSQL database already holds NetBird data.
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</Note>
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## Step 4: Point the Management Server at PostgreSQL
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Change only the store settings. Keep the encryption key (`server.store.encryptionKey` in `config.yaml`, `DataStoreEncryptionKey` in `management.json`) as it is: the tool copies encrypted values as they are, so the management server needs the same key to read them.
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### Combined setup (config.yaml)
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Set all three stores to PostgreSQL in `config.yaml`, using the DSNs you migrated into:
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```yaml
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server:
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store:
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engine: "postgres"
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dsn: "host=<PG_HOST> port=5432 user=<PG_USER> password=<PG_PASSWORD> dbname=<PG_DB> sslmode=require"
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activityStore:
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engine: "postgres"
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dsn: "host=<PG_HOST> port=5432 user=<PG_USER> password=<PG_PASSWORD> dbname=<PG_DB> sslmode=require"
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authStore:
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engine: "postgres"
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dsn: "host=<PG_HOST> port=5432 user=<PG_USER> password=<PG_PASSWORD> dbname=<PG_DB> sslmode=require"
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```
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Remove any `NETBIRD_STORE_ENGINE_MYSQL_DSN` or `NB_STORE_ENGINE_MYSQL_DSN` variable from `docker-compose.yml`.
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### Older multi-container setup (management.json)
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In `management.json`, set the store engine and, if the file has an `EmbeddedIdP` section, its storage:
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```json
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"StoreConfig": {
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"Engine": "postgres"
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},
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"EmbeddedIdP": {
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"Storage": {
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"Type": "postgres",
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"Config": {
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"DSN": "host=<PG_HOST> port=5432 user=<PG_USER> password=<PG_PASSWORD> dbname=<PG_DB> sslmode=require"
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}
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}
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}
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```
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Then, on the `management` service in `docker-compose.yml`, replace `NETBIRD_STORE_ENGINE_MYSQL_DSN` with:
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```yaml
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environment:
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- NETBIRD_STORE_ENGINE_POSTGRES_DSN=host=<PG_HOST> port=5432 user=<PG_USER> password=<PG_PASSWORD> dbname=<PG_DB> sslmode=require
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- NB_ACTIVITY_EVENT_STORE_ENGINE=postgres
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- NB_ACTIVITY_EVENT_POSTGRES_DSN=host=<PG_HOST> port=5432 user=<PG_USER> password=<PG_PASSWORD> dbname=<PG_DB> sslmode=require
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```
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## Step 5: Start and Verify
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```bash
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docker compose up -d
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```
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Log in to the dashboard and confirm that your peers, users, and activity events are there. Then delete the `backup` directory.
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## Roll Back
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The tool doesn't change MySQL, so to roll back, revert the store settings from Step 4 and restart the management server. Changes made while running on PostgreSQL aren't carried back to MySQL.
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A failed run leaves no data in PostgreSQL, so you can fix the problem and run the tool again.
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## Troubleshooting
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### Tool exits with "target already holds data"
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The PostgreSQL database for the store named in the error already holds NetBird data. If an earlier run of the tool finished, your data is already there, so continue with [Step 4](#step-4-point-the-management-server-at-postgre-sql). Otherwise, point the tool at an empty database.
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### Tool exits with "tls error: server refused TLS connection"
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The DSN requires TLS (`sslmode=require` or `verify-full`), but PostgreSQL doesn't accept TLS connections. Enable TLS on PostgreSQL. If PostgreSQL runs on the same host or Docker network as the management server, you can use `sslmode=disable` instead, in the tool's DSNs and in the Step 4 settings.
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### Tool exits with "source lacks columns"
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Your data was last written by an older release than the tool. Start the management server once against MySQL on the same release as the tool, then repeat [Step 2](#step-2-stop-the-management-server-and-back-up) so your backup holds the updated `events.db` and `idp.db`, and run the tool again.
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### Tool exits with "no NetBird tables found in the source"
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The error names the store it came from. For `management`, check the database name in `--mysql-dsn`. For `activity` or `auth`, check that `--events-db` or `--auth-db` points to the `events.db` or `idp.db` in your backup.
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### Management server doesn't start: "activityStore.dsn is required when activityStore.engine is postgres"
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The `activityStore` block in `config.yaml` sets `engine: "postgres"` without a `dsn`. Add the DSN as shown in [Step 4](#step-4-point-the-management-server-at-postgre-sql). You can see this error with `docker compose logs netbird-server`.
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